Shivani Dave redefines the kilogram on Radio 4

Delighted to hear recent graduate Shivani Dave (2017 BSc, Physics) on Radio 4 explaining the redefinition of the kilogram earlier this week. No longer tied to a single lump of metal sitting in a vault in Paris, the new definition adopted on Friday at the General Conference on Weights and Measures in Paris redefines our measure of mass in terms of a fundamental constant of nature, Planck’s constant. You can hear more on the topic from Shivani here: